On November 18, 2007 I
tested a New England Firearms Handi Rifle chambered in 357 Magnum with four 9MM
silencers. The weapons barrel has been shortened to 16.1 inches and
threaded to accept the silencers using the 1/2X28 TPI threading. In this
review we tested some hand loaded 180 grain jacketed hollow points. Click the
picture to read the review

9MM Integral
Shootout

I tested three integrally
suppressed 9mm upper halves for the AR15/M16 platform. The uppers tested
were the LRM M169 (no longer currently produced by the manufacturer), a custom
built Norrell DEA upper and the SRT Arms integral upper. The LRM and the
Norrell utilize short 9mm barrels and can only be fired on registered short
barreled rifles, or registered M16 machineguns. The SRT Arms Integral can
be used on any regular AR15 platform. Click the picture to see the review

Beretta 92FS Tests

On September 20th 2007, I
tested my Beretta 92FS with 3 silencers. I have had much trouble getting
my personal Beretta to function without a booster. I polished all the
contact surfaces well, used a 10lb Wolff recoil spring, oiled it well, and
viola...it functions with a screw on mount can. Click the picture to see
the review

9MM Silencer
Shootout

1.25 Outside
Diameter Silencers

On September 20, 2007 I
tested five 1.25OD silencers. In my previous tests I tested two 1.25OD
silencers and one 1.375OD silencer. This is comparing apples to oranges to
some degree, so I wanted to test the smaller silencers separately. I
tested the Gemtech Trinity, the AAC Evolution 9, the YHM Cobra, the SRT Arms
Matrix GS, and the SWR Shadow 9. Click the picture to see the review

9MM Silencer
Shootout

1.375 Outside
Diameter Silencers

On September 20, 2007 I
tested two 1.375OD silencers. In my previous tests I tested two 1.25OD
silencers and one 1.375OD silencer. This is comparing apples to oranges to
some degree, so I wanted to test the smaller silencers separately. In this
test the SWR Trident 9 goes up against the HTG Cycle 9. I tested on a
Glock 17 with a LWD match grade drop-in barrel and a Sig Sauer P226 Tactical
with factory threaded barrel. Click the picture to see the review.

9MM SHOOTOUT and PISTOL TRIALS

On July 22, 2007 I did an
extensive review of three 9mm silencers with 4 separate popular pistols. I
used 3 common ammunition types. The test was to determine the sound
pressure levels of each pistol and each silencer as well as to determine the
optimum combination. I also tested the ballistics of each ammunition type
both with and without the silencers attached. Click the picture

HTG Cycle 9

I reviewed the HTG Cycle 9
suppressor from High Tech Gunworks on October 20, 2007. The Cycle 9
is a 1.375 Outside Diameter silencer that weighs 11.2 ounces and is 7.75 inches
long overall. It comes with a stainless blast baffle and utilizes patent
pending Epsilon baffles. Click the picture

GEMTECH
TRINITY IN DEPTH

The Gemtech Trinity is
Gemtech's current production 9mm silencer. It was designed as a
multi-platform, lightweight modular silencer. It can be fitted with up to
five different weapon couplers, plus the 9mm Talon upper that can be fitted onto
an M16. Three screw-in mounts are available in 3 sizes, 1/2X28TPI,
1/2X36TPI, and the metric 13.5X1 left hand thread mount. Read more...click
the picture

AAC EVOLUTION
9 IN DEPTH

The AAC Evolution 9 was
designed to be fired on a pistol. It was not designed as a multi-platform
silencer (even though it does well in other applications). The main design
feature of the Evo 9 is the A.S.A.P system, which stands for Assured Semi
Automatic Performance. The A.S.A.P system is a booster system referred to
as a "Neilsen Device" to enable the pistol to function properly. When you
add a silencer to a barrel, the extra weight can cause the action to fail to
work. Click the picture for more...

SWR TRIDENT 9
IN DEPTH

The SWR Trident 9 is a
modular design silencer. It can be used on multiple platforms with the use
of various coupling devices. SWR's "Neilsen Device" is called the L.C.D.
The L.C.D comes apart using the supplied tool so the end user can install either
a 1/2X28 piston shaft, or a M13.5X1 piston shaft. The L.C.D actually has
its own porting system built into it and the piston shafts are themselves
ported. This allows the L.C.D to begin the gas trapping process.
Click the picture for more...

SWR Shadow 9

On October 20, 2007 I tested the SWR Shadow 9. The Shadow
9 is the 1.25 inch outside diameter silencer from SWR Manufacturing. It
features a integrated booster system that allows the user to change pistons to
accommodate the 1/2X28TPI threaded pistols as well as the 13.5X1MM metric
right hand threaded pistols such as the Sig P226 Tactical and the H&K USP
9SD. Click the picture to see the review

Yankee Hills Machine Cobra 9MM

I tested the YHM Cobra 9mm silencer on October 20, 2007.
The Cobra is the boostered 9mm silencer from Yankee Hills Machine Company.
It utilizes Mark White's patented slant baffle system and has it's own user
adjustable booster system. Click the picture to see the review

SRT ARMS MATRIX GS

On October 20th, 2007 I tested the SRT Arms Matrix GS. The
Matrix GS is the boostered version of the Matrix M9. The Matrix GS is
designed to operate on pistols such as the Sig P226, Glocks, H&K USP 9SD and
other Browning-type action pistols. Click the picture to read the review

SRT ARMS MATRIX M9

On October 20th, 2007 I tested the SRT
Arms Matrix M9. The Matrix M9 was specifically designed to be fired on the
Beretta M9/92/92FS/90-Two series of pistols. Click the picture to see the
review

9MM Barrel Lengths

I performed a very brief test to see what
barrel length has to do with sound pressure levels and velocity. The test
was performed with a two 9mm Colt 635 style submachine gun uppers for the
M16 platform. A upper with a 5 inch barrel (know as the Gemtech Talon
upper) and a 9" barreled upper. The silencer used for the test was the SWR
Trident 9. Click the pictures for more info...

3 Lug Adapter and other Mounts Tested

Three lug adapter tests on the Colt 635 style submachine gun upper are
available. Includes the three lug system and the
thread on mounts. The SWR Trident, the AAC Evolution 9 and the
Gemtech Trinity are included. The Evolution 9 seems to make a much better
9mm submachine gun can that it does a pistol silencer. The Evo 9 Triad is
tested. Click the Picture.

SRT ARM
INTEGRAL 9MM UPPER

This is a review of the SRT
Arms 9mm upper for the AR15/M16 weapons platform. Four types of ammunition
were tested for sound signature and velocity was recorded for each shot.
Click the picture

John Norrell Arms 9mm Upper

The Norrell DEA
is a custom job by John Norrell (manufacturer of the world famous full automatic
10/22 closed bolt conversions). This particular upper is not the typical
9mm system he produces, but rather is was built using modern YHM handguards on a
10.5 inch 9mm upper. This system can also be disassembled and cleaned by
the end user. Click the picture to read the review

LRM M169 TEST RESULTS

On March 17, 2007,
I tested the LRM upper on a factory Colt M16A2 registered lower receiver.
I tested 6 types of factory loaded ammunition for ballistics/velocities and for
dB measurements. The LRM 169 was loaded with 10 rounds of each type of ammo. No
jams or weapon malfunctions were noted during the entire test. There is no way
to test the LRM unsuppressed as it is an integral upper and you cannot remove
the silencer for an unsuppressed reading. Click the picture

Reflection Tests

I performed a test to determine what
difference, if any, the testing location has to do with sound pressure level
readings. I tested 4 weapons with 4 silencers in 4 different locations
on the same day. I tested the John Norrell integral 10/22, the AAC Prodigy on the Browning Buckmark, the AAC
Evolution 9 on the Sig P226T and the Gemtech M496D on the M16 with 14.5 inch
barrel. One of the main reasons for performing the test was to see if
tests in an open field over grass would be similar or comparable with tests done
on my official test range.